EP 2800239 A1 20141105 - WIRELESS POWER SUPPLY APPARATUS, WIRELESS POWER SUPPLY SYSTEM, AND WIRELESS POWER SUPPLY METHOD
Title (en)
WIRELESS POWER SUPPLY APPARATUS, WIRELESS POWER SUPPLY SYSTEM, AND WIRELESS POWER SUPPLY METHOD
Title (de)
DRAHTLOSE STROMVERSORGUNGSVORRICHTUNG, DRAHTLOSES STROMVERSORGUNGSSYSTEM UND VERFAHREN FÜR DRAHTLOSE STROMVERSORGUNG
Title (fr)
APPAREIL D'ALIMENTATION ÉLECTRIQUE SANS FIL, SYSTÈME D'ALIMENTATION ÉLECTRIQUE SANS FIL, ET PROCÉDÉ D'ALIMENTATION ÉLECTRIQUE SANS FIL
Publication
Application
Priority
JP 2011080331 W 20111227
Abstract (en)
A wireless power supply system includes a wireless power supply apparatus and transmission coils (6, 31, 32). The wireless power supply system may further include reception coils (7, 41, 42). The wireless power supply apparatus includes a power supplying unit, a detecting unit, and a control unit. The power supplying unit supplies electric power to a power transmission coil at a resonance frequency at which a magnetic field resonance is generated between the power transmission coil and a power reception coil. The power transmission coil sends out the electric power as magnetic field energy, using a magnetic field resonance. The detecting unit detects the phase difference of current flowing in the power transmission coil for voltage applied to the power transmission coil. The control unit switches the amount of the electric power supplied by the power supplying unit, based on the phase difference.
IPC 8 full level
H02J 17/00 (2006.01)
CPC (source: EP KR US)
B60L 53/122 (2019.01 - EP KR US); B60L 53/126 (2019.01 - EP KR US); H02J 50/12 (2016.02 - EP KR US); H02J 50/90 (2016.02 - EP KR US); Y02T 10/70 (2013.01 - EP KR US); Y02T 10/7072 (2013.01 - EP US); Y02T 90/12 (2013.01 - KR US); Y02T 90/14 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2013098975A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2800239 A1 20141105; CN 104011968 A 20140827; KR 20140097372 A 20140806; US 2014300202 A1 20141009; WO 2013098975 A1 20130704
DOCDB simple family (application)
EP 11878368 A 20111227; CN 201180075940 A 20111227; JP 2011080331 W 20111227; KR 20147016297 A 20111227; US 201414308075 A 20140618